Drying apparatus for hay and similar material.



E. EIGHLER & 0. TIBLEMANN. DRYING APPARATUS FOR HAY AND SIMILAR MATERIAL.

APPLIOATION FILED APBJO, 1911 I Patented Aug. 1,1911.

' w ziffi WM? I UNITED STATES PATENT or uon.

EMIL EICHLER, OF BUNTENBOCK, NEAR KLAUSTHAL, AND OTTO TIELEMANN, 0F

IMMEMRODE, GOSLAR, GERMANY."

DRYING APPARATUS FOR HAY AND SIMILAR MATERIAL.

Specification of Letters Patent.

' Patented Aug. 1,1911.

Application filed April 10, 1911. Serial No. 620,256.

To all whom it may concern:

Be it known that we, EMIL EICHLER and O'r'ro TIELEMANN, subjects of the German" Emperor,'and residents of Buntenbock, near Klausthal, Harz, Germany, and Immemrode,

Goslar, Germany, respectively, have in-.

paratusfor drying hay and similar material whichis carried through the apparatus by endless conveyers arranged in sucha manner as to provide a zig-zag movement or track through an inclosing' casing which is fitted with heating and ventilating devices.

The main feature of the invention conright angles to the conveyers forming the v zig-zag track, Which receives-the material being dried, from the last conveyer band of the said ziz-zag track and returns it to or I close to the feed aperture or to the first conveyerof the zig-zag track.

The invention is illustrated in the accompanying drawlngs, in which Figure 1 is a vertical longitudinal section of the drying apparatus. Fig. 2 is a plan of same.

In a casing a the revolving shafts Z) and b respectively are fixed in two parallel horizontal planes, and bear the endless conveyers c which run parallel in separate inclined compartments. Between adjacent conveyers,

which are fitted with suitably formed hooks, fingers or, the like, 0, a fixed partition 03 is arranged against the surfaces of which the said hooks or fingers pass slightly on the ascending and descending sides. Further, at

about the height of the lower revolving" shafts 5 between adj acent band partitions of the conveyers there is provided a rotatable transfer plate f which has slots for the passage of the'hooks or fingers c. A. simple, and in proportion to the size of the casing -a lengthy zig-zag track is thus formed for the passage ofthe material such as grass, tobe dried, and which commences at the feed aperture 9 and ends at the outlet chute hi Atthe discharge end is arranged'a heating device 73- which may be heating coil for -example. the opposite end of'the casing a ventilator 7c is provided for sucking out the hot air which comes in the opposite direct10n to the travel of the materialin the zig-zag track.

Above the conveyers c, which are operated from a common shaft Z through the intervention of cog-wheels m,'the re is arranged a horizontal conveyer n which 1s near the ascending portion of the lastconveyer 0 so that it receives the material raised thereby: and carries it back to the first conveyer 0' which it enters on a second journey through connected or barred from the last conveyer c and the channel to the chute it opened. Forthis purpose a sliding guard 00 may be adopted which can be operated from the outside by means of a handle 00 and so set that the material, carried to the top of the lastconveyer 0, is kept away from the band a and taken along to the outlet chute h. The sliding guard must be slotted to allow for the passages of the fingers of the conveyers. The transposition can also be effected. by shifting the revolving shaft n of the conveyer band 11 away from the last conveyer 0 so that none of the material can reach the conveyer However, any other suitable means may be adopted for discharging the material, and instead of the direct transfer of the material on to the horizontal conveyer band, an indirect means, such as a removable intermediate conveyer or a reversible intercepting flap or such like device can be provided. Between the bottom of the casing a and the lower shafts b or a perforated false bottom beneath the latter, a conveyer 0 can be arranged to carry off to an outlet p the waste material which falls through the gaps between the conveyers c and the slotted plate f. The sides of the casing a can be fitted with air-regulating valves of any suitable kind. Instead of band conveyers any other suitable conveyers can be used, for example, chain conveyers fitted with hooks or fingers.

What we claim as our invention and desire to secure by Letters Patent is A drying apparatus for hay and similar material comprising in combination a casing fitted with heating and ventilating devices, upright conveyersSqvithin separate compartments having rotatable transfer signed our names this 20th day of Mareh plates and forming a zig-zag track, a hori- 1911, in the presence of two subscribmg nut 10 zont'al conveyer above said conveyers which nesses.

at the end of said zig-zag track receives the EMIL EICIILER. material, being dried from the last upright OTTO TIELEMANN. conveyer and carries it back into or close to Witnesses:

the feed aperture, substantially as set forth. BERTHA S GHEL',

In testimony whereof we have hereunto JULIUS SEGHEL. 

